Mid year science review

Chemistry, earth history, infectious diseases

Chemistry Unit

Atomic #: is the equal to the number

Groups/periods on a periodic table: columns up and down

Law of conservation of mass:matter can be changed from one form to another

Elements, compounds, mixtures:Any substance that contains only one kind of an atom is a mixture

physical chemical properties: physical does not change the chemical change of matter.

chemical does not change chemical nature.

physical chemical change: chemical a chemical that is mixed with a chemical to make it change

physical cutting or something that will make it still be the same but look different

earth history